Category Archives: geology

How big was that asteroid? The latest geochemist/geophysicist smackdown

Posted on April 17, 2008 by Chris Rowan

What’s the most accurate method of estimating the size of asteroids associated with past impact events?
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Categories: geochemistry, geohazards, geology, planets

Peperite: a basaltic sneeze into wet sediments

Posted on April 8, 2008 by Chris Rowan

The outcrop that I gave you to ponder on Friday is pretty strange, but I can assure you that this isn’t a wall: Most of you correctly guessed that the dark fragments are composed of a mafic (basalt-esque) igneous rock, … Continue reading →

Categories: geology, geopuzzling, volcanoes

Death Valley Dispatches

Posted on April 7, 2008 by Chris Rowan

If you’re bored with the recent metabloggery here (don’t worry, I’m done, and with ‘nary a mention of the F-word), you could do much worse than to head over to The Dynamic Earth, where Eric has been posting an excellent … Continue reading →

Categories: bloggery, fieldwork, geology, links

Seismology@home

Posted on March 27, 2008 by Chris Rowan

There’s an interesting news story in Nature* about a distributed computing project with a seismological twist. The proposed aim of the Quake-Catcher project is to hack and collate data from laptop accelerometers – designed to protect the hard drive when … Continue reading →

Categories: earthquakes, geohazards, geology, geophysics, public science